It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.

Source: https://blog-aff1qwp4c.mit-edu.top/post/4286059371

  1. <!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "blog-aff1qwp4c.mit-edu.top",cType: 'managed',cRay: '90fceee17ca98f26',cH: 'nauYpI_KmTKv.8iCSDtRcvCxJXgSMvSHXlzI4jgUDAE-1739199252-1.2.1.1-7T6rhjscj12aCbyKVuyv9UhMPKtYLcp5oDTaQMUXpRyzDmM1UFA1AXe_b1RoZiY8',cUPMDTk: "\/post\/4286059371?__cf_chl_tk=QBGxzl3FH1wGFZdLqggQmCBCQ13lbfqQtuqITQql57U-1739199252-1.0.1.1-fxt87IGolFyJQIKZF6LP8dRCMVfjiIBK29HMLISDJ1w",cFPWv: 'g',cITimeS: '1739199252',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4286059371?__cf_chl_f_tk=QBGxzl3FH1wGFZdLqggQmCBCQ13lbfqQtuqITQql57U-1739199252-1.0.1.1-fxt87IGolFyJQIKZF6LP8dRCMVfjiIBK29HMLISDJ1w",md: "lIY.BC2o77cnqjTr.6jn.DbTOW6sBC8y0SwnIqvQJI8-1739199252-1.2.1.1-zh3pMc9226sH29Ps2N0owEbHPX3zdBafce3_mV3yXd6YKS9xWUy0daQbPpo3Sx7s0GWl67o6TGaC0neyMdMFhBSovxE0C4Nj24pOUu.hu8pAsMAeiN3Q5SfLflwfcVMMQK76h0oEVFdyfa21KWxsSCrmS3DkQPkEktPN2.zzaB5.0Sipw6R.PNwo9OutPlq6VNsVlAIV.j8iPjtvtghuab2EmkrULrdI0pqM80iAahihA5ie8Nod1.Ybxyd3vh63luHfEQxg0tu5DadI8H0FBERaXvK3zVC6PorauodBz6ljyTt0k3GLasC.eskz1S72hrUBvc3Gv8uxilaW5umMlv50Lp5ojlCW56D_T1S7qmqBKGLX0Efkw1JsCg.IpHV5N2fB_0G9QspfST60B2SrxHcW36WW4LHMQE0NPdwLQT3JUTvm3y0OhhSWB62Ah_8f2kiM8C1ucCm9xQuu.i2eAkIm0LmS4sDXDUba24EfQJOxLWPkn6koVZSRLeVN1JlM8o5VoJPvAfFUjJRFj7xv_7wqgeYRo3RZ.Ik42At0kupwHXh.7WLdksdWA3durgPsFJ7yEg83QTyfijytSQpVLcZJaXWafWhaLYMYK5A2gQL4iAkkLPIPd0RzdNhX9EsTowDfxH_h8moohYpBRBRaU7r5fhp36EmU7tij7rDiUF9gSgZUjGTO4.qox5FlNN_iFsCk9b_.WexXPpAuZxDNavzcZIShOir3b1JbdJRwiDA4sr_xWVRttzx1I.JHZALA9VqafCBw8vX1XYA5z5holur_g_TsoenXcUx3pv7m6B4nVDsLsfaYA39PdDW4UwJxhbyKNgRseYwqHTICcTlZC0IEEkZg6nxKtOCiO1KzEPeCq28IJ5KpwTp6VzUxSaJpK3LxJbRW8IbbXPFVABy3vkAr4j9EIlixvjyX_n0P3YlV6hI9fmsi3ixVgj9P7KOaGrOr2sO1iwxcXkcGF_590f.xC_gDfYTxmXaMCpUmaF8kAZxPqo7PccAv7W2.rQ.WVqeJVeF_.VsTj5RhB5.sUrYGinyVBYay7EI1ULdmT7AACuOsahyWyaMArJdyZD1JTW9F5..y8r4OeJbG.ObMM1HpUZc8ZV.gD3BBqzn4PKKhTNziyEquOFyooadWiYL2ZEDWYyFa73e.ymNOqsUHjIkDqbX6zr.tPAPw96NI9WtLwf30xDBWxFT3fU8k6yWaIJkqmqwK0MQKBg_oQODaRIEgu5ISnvAxNhPiKYE76AECkxgtn8S053_eN_qxuhR6v4Wm4DN2io83Ul3Q7iyFlD7tGWPGxiD2XrHsyIXDxjpgG9rgT3kbr81_4eVX3gd3vkOTq42vidG8n1wQe0t2h2oBKXG3W5hYm4j9.SageBGvfRpu2UOfyiAPB0.n6DatQTJriF1X6u0UyXjIlFVvitRqAUHpDnCIpy66Ti_1Hw2Uc2v31AcRdYNyoKSO7g1fUyrZtveHfK_NsHqurgkNzBoCygwcnSEPDM6r10M3ZbugvdfTien0RnXCkEHTo2ILMFqtmOeqCCK7Jp17QARC10M98zS6peeNklwTj1J6FArpIXpgdz5Aq10.oPV5JgQwP_zOvmQ9kEtJAxc1N3f1fxLyfIpe9WAdZ44c.B9PoIi6k8e8dchM8iZFFv8_ekrC4u0kN3fF0S9n056rRCWaJQ3fgSC9akX8x3embLjwEBtYRNPkOA7UZ_3dU2TfcNrmDyuBoZbJFeLhzu3RHaY6sfjfBuv9UGyNWwVaxr7.T8uHzsXxxcmMpHyEaXEw0E4RjGoM3fRZKyAG4wJFbzV1lROd8gyLb02hS5tL2DTmYPbJliK2dG27Onlolu0ZBdcIXNSgcd3X0SkmEuSLdEwjqmIknxMNgd4IW2SKrBvATY7DxkxYjCj.lCP2d.6SPt_lWyRONMKBqlMJwzqxzoF30ymHI7MzIHkSzzhrA8tVnifVJPnnXJ0la2NsIIG3qK8uz_9pIcuc9FG514GXHh83SsTWrpW.PfHwbXLCoW2ZnTgJUF_L7wsQs1YaQ4j7W.5aF6B9CvpAHSIOSCFbQD5k5.mR46sdQZG5GYfsNmdujN1LalY7HVUuX3RV1X6IiycDxMDude6ha3UQ_vmPYmxvr9N7AXlHhlca0ZBuFJDiap_Mf1SxcnIh5Ri1ubNwhdhHQYl7nGrUIN5T3LtgvzhFJiGRm3zWU3bKFSzZTBKpGTzJA3z7cmQRY5DCGvfR1Eb.",mdrd: "q3.wJbpYNIxllSeDeKopvZmCtZir2.3SbfUN51csOVw-1739199252-1.2.1.1-jlT6EudDDCq9o56hTvnT6jKxJoLmIZemhIqvlRYaTaZaZ.T06AP9f6OsyMwZ6It587dmW8kp71I7s8ZjrvKBmx0xxkZH0lxYj.CsAUCuNiGfiQQme.8xiLNedI941m8dbcebMB4IHAyv.iBPMGATSn1P8xMhAG.hmyM2WFz4AsvzY4nMivCoPA4vsQMrWxqC.qQwgBovsbjsqGZLZOvrnZEr38T8NlLXInFylhhK8FcCfKacU._xFkUyTEJ_VM6kbpfNktZdU9LS0Ti_9o1u6Iwp0DEQVf1j4zR9UBAp6_L02Mycp3.ThDwiXqKGg_JS8blaGKKUqi3dMUfKUmK1VViqnyiWFew5yGI089WSqvAsNFg1R0s2rJGpCnjhaeD48DU5AKfRLvizlvWn35nc8dtaDCiiqRr9__CalBi2UY9Rl1z8pAnHM7IhxzDfjSf3boVFhycngBQNPhlQnNgLtnj8c.5YfkDqlNF3l5k_EEDOz4NGjL3et.iBA6lD097urvblZ6_MIneVZ.2xCLfudd9lILU_wKc8DAFTbYy1XvhZM5w6LbeXZK0uVqUpaju2og5eavkgghqmnSn8sVzOudU9cF2DZZUaBeu3Qpmh6JOtLE2XcPWQ7l26J9PEqtK3FZg8sHERvsMWV5O6AVQKZK1l1pSEAt9IzwilkFRi9HcL9HOEciSOKMo9409xQ9lHoMZUvMd24fugFlYQBdWzTZ7kFuvBg1ilePDoaygjtZSZDAk_1T66paSXPLjGdj5jj5nd3vzCQJ08WJzX2..lzYSr6PV6Nyko92TinkFu1FSl79wW5YgFxOYgFioNQVrHoJBGlYs9d1vb.8Ys8EeVQdOIk9J8B67o9V95iRy7UPlq_VQbxFGHT1Neyh8kIed2FBlUDJuekLUMJPDtmVN9zbWs8DPfF9OJuwc5TadAtooZplKFISKZ5kFV3DykNdtkzHmzN5gCN.IExs1RLcsqAAGNc5Gc3q0wrLkP.Zv9Yjg1zeXNiFNA8vjZQ9JiCKHoRv5wBa58i_a4CYfw4LuMEjkdfyzuX9YwGa8g.LvVkbfIhVxuMqNsSWCkEu6RbvuoAEnSQdFsA8T9iGllp7ebbQmCltDvML_J4OyHVQ22Ao5jY7E4dYy3TfKEFMH9cYul7dFyHxVFxPcOEQGO1OGR3eYo5BsFJyclowFnc9tx9KuVnWDse.ohI8H6Ayf86U3.9uZXmV7zlbzzMLqokRTn_FS8MzG0z4xoheayaY4lv3cXVrF0CC9_NSll8SMt7g1VsIhx4UXxN4RtLBjpau9PbORBt7jPx0zbd4ngymYIJnRBdlbYGCXnWEmJoOXSiAUyMl_hE0ReDcmLbwvhidbCZH4wrkJPF3Lp.KFDI2gVTUUWs0qpxYg_mmC5cDyD5sTsUW_UuyRSPY7DluOpy4ec_nb._eVULrUGBNO8U34ra.uSilpcDHjnynsv3rHxmPgOewEK3LMq3bDZ.nX01BIxs608ACjdUt.g.ELw4AOox4A2b7kTAOPL16rz0p30wcRh3JmelERU2St7j8WUJdvo62hZD4rVRT4zELhihytrnuupU0reUYYgTK8yyts.sv.5ZS7AQMV6ib.I2t3bgzk3An1ROLuUmehPyKgYWPSekIC1v_R7Pud0SacOZ2vzZFpXnR9Ioi5r336W0lxEjhlEHwU5GXlB_3RHsqB6yZXtK7l6XgJFDdMSBEx8gHx6__24zhCYzBO7k21Rfurtw52.bWkBxkxtoO0k6vlWuNoGe1SG7QueKKRJHd5B5mDTaHgYRzX9ZXAgin8jc7k14d0cYg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fceee17ca98f26';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/post\/4286059371?__cf_chl_rt_tk=QBGxzl3FH1wGFZdLqggQmCBCQ13lbfqQtuqITQql57U-1739199252-1.0.1.1-fxt87IGolFyJQIKZF6LP8dRCMVfjiIBK29HMLISDJ1w" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda